Api
Polymarket & Kalshi API Dev Brief: April 9–16, 2026
Polymarket Builders Program audit, Kalshi fixed-point migration, GitHub supply-chain attacks, and CLOB error codes — dev brief for April 9–16, 2026.
Read → Layer 3 — TradingKalshi Review: Platform, API & Agent Guide
Kalshi review for 2026. CFTC-regulated prediction market covering markets, fees, API quality, demo sandbox, sports contracts, and AI agent compatibility.
Read → Layer 3 — TradingKalshi Sports Contracts: Props, Combos & API
Kalshi sports event contracts guide. Moneylines, spreads, totals, player props, and combos — with API examples, odds conversion, and agent strategies.
Read → Layer 3 — TradingKalshi vs Polymarket: Full Comparison
Kalshi vs Polymarket compared on fees, markets, APIs, liquidity, regulation, and agent compatibility. Data-driven analysis for traders and bot builders.
Read →Prediction Markets
Prediction market guides, platform reviews, API docs, bot rankings, and trading tools for Kalshi, Polymarket, FanDuel Predicts, Rain Protocol, and DraftKings Predictions.
Read → Layer 3 — TradingPinnacle Review 2026: The Sharpest Lines in Sports Betting — Margins, CLV & Market Making
Complete Pinnacle review for sharp bettors and developers. Lowest margins in the industry, closing line value benchmark, market-making model, API access, and automation potential for AI betting agents.
Read → Layer 3 — TradingPolymarket US API Guide: Endpoints, Auth, Rate Limits & Python SDK (2026)
Complete Polymarket US API reference for developers. Ed25519 authentication, all 23 REST endpoints, 2 WebSocket channels, 60 req/min rate limits, KYC onboarding, and Python SDK examples.
Read → Layer 3 — TradingPolymarket US vs Offshore API Comparison: Authentication, Settlement & Developer Gotchas (March 2026)
Side-by-side comparison of Polymarket US, Polymarket Global, Kalshi, and offshore sportsbook APIs. Covers authentication, settlement, rate limits, SDKs, and the most common developer issues as of March 2026.
Read → Layer 3 — TradingPolymarket Auth Troubleshooting: POLY Headers, Signature Types, and Error Reference
Fix Polymarket API authentication errors. Covers all five POLY_* headers, signatureType values, funder addresses, proxy wallet architecture, and step-by-step debugging.
Read → Layer 3 — TradingPolymarket Gamma API Guide: Market Discovery, Price History & Endpoints (2026)
Query the Polymarket Gamma API for market discovery, events, price history, and pagination. Includes endpoint tables, filtering examples, and caching strategies.
Read → Layer 3 — TradingPolymarket Rust SDK Reference: Setup, Methods, and Trading Examples
Reference for the Polymarket Rust SDK. Covers Cargo setup, client initialization with alloy signers, method reference by category, error handling, and performance patterns.
Read → Layer 3 — TradingPolymarket TypeScript SDK Reference: @polymarket/clob-client Methods with Examples
Complete reference for @polymarket/clob-client TypeScript SDK. Every method with signatures, parameters, return types, and working examples.
Read → Layer 3 — TradingPolymarket WebSocket Guide: Channels, Subscriptions & Real-Time Orderbook (2026)
Connect to all four Polymarket WebSocket channels, subscribe to market and user feeds, build a local orderbook, and integrate real-time data into your Python trading bot.
Read → Layer 3 — TradingPolymarket US vs. Polymarket Global API: The Migration & Dual-Stack Guide
Side-by-side technical comparison of Polymarket US and Polymarket Global APIs. Covers authentication (Ed25519 vs EIP-712), SDKs, endpoints, order formats, rate limits, and how to build agents that trade on both.
Read →DraftKings Super App: What the Sports & Casino Merger Means for AI Betting Agents
DraftKings merges sports betting and casino into one super app. Here's what it means for AI betting agents and API automation.
Read →Agent Betting Tool Directory — Every Tool in the Prediction Market Agent Stack
Curated, categorized directory of every tool in the autonomous agent prediction market ecosystem. Organized by stack layer: Identity, Wallet, Trading, and Intelligence.
Read →DraftKings Sportsbook Review 2026: Odds, API Ecosystem & Agent Compatibility
Complete DraftKings sportsbook review for developers. Odds quality, state availability, DraftKings Predictions integration, API access, and AI agent compatibility.
Read → Layer 3 — TradingThe Prediction Market Trading Layer: How Agents Execute Trades in 2026
Complete overview of Layer 3 — Trading for prediction market agents. Polymarket CLOB, Kalshi REST, DraftKings Predictions, unified APIs, and agent execution patterns compared.
Read → Layer 3 — TradingPolymarket vs Kalshi for Bot Trading 2026: Complete Platform Comparison
Polymarket vs Kalshi for automated trading: API comparison, SDK differences, authentication, pricing formats, rate limits, and which platform is better for your trading bot.
Read → Layer 3 — Tradingpy_clob_client create_order — Place Trades on Polymarket with Python
How to use create_order and post_order in py_clob_client. Covers GTC, FOK, and FAK order types, tick_size, neg_risk, batch orders, and complete Python examples.
Read → Layer 3 — Tradingpy_clob_client get_balance_allowance — Check USDC Balance on Polymarket
How to check your USDC balance and token allowance on Polymarket using py_clob_client. Covers BalanceAllowanceParams, AssetType, wei conversion, and Python examples.
Read → Layer 3 — Tradingpy_clob_client get_order_book: Polymarket Order Book Python Guide
How to use py_clob_client get_order_book to fetch Polymarket order book data. Covers OrderBookSummary return type, get_order_books batch method, BookParams, spread calculation, and working Python examples.
Read → Layer 3 — Tradingpy_clob_client get_positions: Polymarket Position Tracking Python Guide
How to use py_clob_client get_positions to track Polymarket positions. Covers response fields, position filtering, P&L calculation, Data API alternative, and working Python examples.
Read →BetUS API and Automation: What You Need to Know
BetUS odds data and automation for developers. API access options, third-party providers, and integrating BetUS into multi-book pipelines.
Read →Bovada API: What Developers Need to Know About Accessing Bovada Odds
Bovada API access for developers: internal endpoints, GitHub scrapers, and third-party providers like The Odds API. Working Python code included.
Read →Does BetOnline Have an API? How Developers Access BetOnline Odds Data
BetOnline has no public API. How developers access odds data via The Odds API and OpticOdds, with working Python code and pipelines.
Read →How to Track Closing Line Value with an API
Build a CLV tracking bot that captures closing lines via API and measures your edge automatically. Python code included.
Read →MyBookie API and Odds Data Access
MyBookie odds data for developers. API options, third-party providers, line characteristics, and multi-book pipeline integration.
Read →Offshore Sportsbook APIs: The Complete Developer Guide
Programmatic access to offshore sportsbook odds data — BetOnline API, Bovada API, Sportsbetting.ag, MyBookie, and BetUS. Covers official endpoints, undocumented internal feeds, third-party aggregators, and scraping approaches for building automated betting systems.
Read →Offshore Sportsbook Odds: How to Normalize Data Across Books
Normalize odds data from multiple offshore sportsbooks. Format conversion, market matching, timestamp alignment, and a Python pipeline.
Read →Sharp Betting Concepts for the API Age
Bridge traditional sharp betting concepts — closing line value, +EV, steam moves, vig — with modern APIs, bots, and autonomous agents. Learn how to automate CLV tracking, steam move detection, and Kelly-optimal position sizing.
Read →Sportsbetting.ag API and Automation Guide
Sportsbetting.ag odds data for developers. API access options, third-party providers, and how it compares to other offshore books.
Read → Layer 3 — TradingDome vs pmxt vs OddsPapi: Unified Prediction Market API Comparison (2026)
Unified prediction market API comparison: Dome, pmxt, and OddsPapi. Architecture, data coverage, pricing, and code examples.
Read → Layer 3 — TradingPolymarket Rate Limits Guide: Every Endpoint, Burst Rule & Retry Strategy (March 2026)
Complete Polymarket API rate limit reference for March 2026. Per-endpoint tables for CLOB, Gamma, Data API, and trading endpoints with burst vs sustained limits, 429 error handling, and production retry code.
Read → Layer 3 — Tradingpy_clob_client Python Reference — Every Method with Code Examples (2026)
Full py_clob_client method reference with working Python examples. Covers get_order_book, create_order, get_positions, get_balance_allowance, and error handling patterns.
Read → Layer 3 — TradingDome
Developer infrastructure providing unified APIs and SDKs for accessing real-time and historical prediction market data across multiple platforms.
Read → Layer 3 — TradingKalshi API
REST API for the leading CFTC-regulated US prediction market exchange. Event contracts on politics, economics, weather, sports, and more.
Read → Layer 3 — TradingKalshi API Guide: Python SDK Setup, RSA Auth & Demo Sandbox (2026)
Connect to the Kalshi API with Python. RSA-PSS authentication, demo vs production base URLs, REST v2 endpoints, WebSocket streaming, and kalshi-python SDK quickstart.
Read → Layer 3 — TradingPolymarket API Tutorial: Python Authentication, Orders & WebSocket Streaming (2026)
Step-by-step Polymarket API tutorial. Set up py_clob_client authentication, place your first order, stream prices via WebSocket, and handle rate limits — with tested Python code.
Read → Layer 3 — TradingPrediction Market API Reference: Polymarket & Kalshi Endpoints Side-by-Side (2026)
Compare Polymarket and Kalshi API endpoints, authentication methods, and rate limits in one reference. Includes py_clob_client methods, Kalshi REST v2, and working Python examples.
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